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Metal Machining
Non Productive Time in Production Cost Formulas
Non Productive Time refers to the periods during the manufacturing process when the machine or operator is not engaged in active cutting or material removal. And is denoted by T
np
. Non Productive Time is usually measured using the Minute for Time. Note that the value of Non Productive Time is always positive.
Formulas to find Non Productive Time in Production Cost
f
x
Total Non-Productive Time using Average Production Cost
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List of variables in Production Cost formulas
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x
Batch Size
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f
x
Production Cost of Each Component
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f
x
Cost of a Tool
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f
x
Machining Time
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f
x
Number of Tools Used
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f
x
Time to Change One Tool
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FAQ
What is the Non Productive Time?
Non Productive Time refers to the periods during the manufacturing process when the machine or operator is not engaged in active cutting or material removal. Non Productive Time is usually measured using the Minute for Time. Note that the value of Non Productive Time is always positive.
Can the Non Productive Time be negative?
No, the Non Productive Time, measured in Time cannot be negative.
What unit is used to measure Non Productive Time?
Non Productive Time is usually measured using the Minute[min] for Time. Second[min], Millisecond[min], Microsecond[min] are the few other units in which Non Productive Time can be measured.
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